An Actual Legal Question About Jurisdiction and Precedent

So there have been multiple cases under multiple judges this year that have addressed the eligibility of players who have signed pro contracts.

In two cases judges ruled that signing a pro contract makes a player ineligible to return and play college sports.

Colorado Judge Clarifies That Signing a Pro Contract Makes Players Ineligible

Alabama Judge Rules Signing Pro Contract Makes Player Ineligible, Supreme Court Affirms Ruling

So how do different conflicting rulings impact players? Is each ruling a blanket for the individual player? Or does it depend on jurisdiction? For example, a Tuscaloosa county judge ruled, and Alabama Supreme Court affirmed, that signing a pro contract made a person ineligible to return to the basketball court as a college player. Does that ruling only impact the player involved in the case? Or does it apply to all players who play in the state of Alabama?

And vice versa, since a Louisiana judge has ruled that signing a pro contract does not void eligibility, does that apply to all players who play in Louisiana?

For example, would Charles Bediako be eligible to play in Louisiana? Vice versa, does the ruling on Dauquan Wright apply everywhere, or does it apply just when he plays in Louisiana?

And how do all these different conflicting rulings from different judges in different areas impact precedent? You have judges who are making diametrically opposed rulings on the same matter. Who is right? Or does every single case have to be argued in court now?